<?php

class UserIdentity extends CUserIdentity
{
	private $_id;
	public function authenticate()
	{	
		$username=strtolower($this->username);
		$user=User::model()->find('LOWER(username)=?',array($username));
	if($user===null)
		$this->errorCode=self::ERROR_USERNAME_INVALID;
	else if(!$user->validatePassword($this->password))
		$this->errorCode=self::ERROR_PASSWORD_INVALID;
	else
	{
		$this-> id=$user->id;
		$this->username=$user->username;
		$this->errorCode=self::ERROR_NONE;
	}
	return $this->errorCode==self::ERROR_NONE;
}
public function getId()
{
	return $this->_id;
}
	
}